Bag filters

Recommended applications

The medium replacement air filter generally adopts a bag type structure, which can effectively enlarge the windward surface of the filter, so that the filter has the advantages of large dust holding capacity and low wind speed. Therefore, it is considered to be the best medium filter structure. Due to these advantages, bag filters are widely used in central air-conditioning ventilation systems, and air purification in pharmaceutical, hospital, electronics, airport, food, and other industries.

In addition, the bag filter can also be used as a pre-filtration device of high efficiency air filters to lighten their load and extend service life.

Technical parameters of air filter

Initial resistance (Pa)	Standard EN779	Filtration efficiency (Dust-spot)
≤50-≤110Pa	F5-F9	45%～ 99%@0.5μm

YouJie can use F5-F9 class filter media to make bag filters. F5 F6 F7 F8 F9 Main material:

Filter media	F5-F9 efficiency melt-blown non-woven fabric
Frame	Aluminum alloy frame or galvanized iron frame
Sealing strips	EVA or not

Features of medium replacement air filter Each filter bag is made of ultra-fine synthetic fibers in a special weave process to avoid the discomfort that traditional glass fiber material may cause to the human body. The filter media contains electrostatic fibers, which are particularly excellent in the filtration of sub-micron dust particles. Therefore, the bag filter has the characteristics of high dust capture rate, high air permeability, and long service life. The four sides of the filter bag are fused by ultrasonic and each filter bag is separated by a metal strip, which not only increases the strength, but also prevents the filter bag from breaking due to the wind-cut friction under high wind velocity condition. Each filter bag has six separators evenly distributed in the bag in case of over-expansion and mutual obstruction when under wind pressure. This structure increases the effective filter area and filtration efficiency. Optional specifications Note: The following is the common size of the air filter. Youjie can also provide custom size filters according to your requirements.

Efficiency in NBS(%)	Nominal Size(W×H×D) (inch)	Actual Size(W×H×D) (mm)	Pockets(P)	Rated Capacity (M3/H)	Pressure Drop(Pa)
F5	24"×24"×15"	595×595×381	6	3400	60
	12"×24"×15"	295×595×381	3	1700
	24"×24"×24"	595×595×595	6	3400
	12"×24"×24"	295×595×595	3	1700
F6	24"×24"×15"	595×595×381	6	3400	70
	12"×24"×15"	295×595×381	3	1700
	24"×24"×24"	595×595×595	6	3400
	12"×24"×24"	295×595×595	3	1700
F7	24"×24"×15"	595×595×381	6	3400	80
	12"×24"×15"	295×595×381	3	1700
	24"×24"×24"	595×595×595	6	3400
	12"×24"×24"	295×595×595	3	1700
F8	24"×24"×15"	595×595×381	6	3400	90
	12"×24"×15"	295×595×381	3	1700
	24"×24"×24"	595×595×595	6	3400
	12"×24"×24"	295×595×595	3	1700
F9	24"×24"×15"	595×595×381	6	3400	95
	12"×24"×15"	295×595×381	3	1700
	24"×24"×24"	595×595×595	6	3400
	12"×24"×24"	295×595×595	3	1700

Related
air filtration, filter replacement, commercial filter replacement